Bung and bung-bushing.



Patented Beef 4, I900. G. STAIGEB.

BUNG AND BUNG BUSHING.

(Application filed A r 33, 19

(No Model.)

INV ENTOR.

WITNESSES: 10M %%%;z;

NITED STATES PATENT i FFIQE.

GODFREY STAIGER, OF TOLEDO, OHIO.

BUNG AND-BUNG-BUSHING.

SPECIFICATION forming part of Letters Patent No. 663,049, dated December 4, 1900.

Application filed April 23, 1900- Serial No. 13,860. (No model.)

To all whont it may concern:

Beit known that LGODFREY STAIGER, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Bungs and Bung-Bushings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to bungs and bushin gs therefor for barrels and casks such as are used for ale, beer, and the like, and more particularly to that class of bung-bushings consisting of two rings screw-threaded to engage each other and having flanges to clasp between them the margin of the bung-hole.

The object of my invention is to provide a bung and bung-bushing in which the two flanged rings may be engaged with each other and caused to clamp the margin of the bung hole and in which the parts may be assembled and secured in position without disturbing a stave and without removing a head from the cask or barrel. I attain this object by means of the devices and arrangement of parts hereinafter described, and shown and illustrated in the accompanying drawings, in which-- Figure 1 is a central transverse sectional view of my device, taken longitudinally of the stave. Fig. 2 shows the stave and hung partly in section,with the inner ring half-way through the bung-hole, illustrating the man ner of introducing theinuer ring into the interior of the cask; and Fig. 3 is a plan view of the bung-hole seen from the inner side of the stave with the rings removed.

Like numerals of reference indicate like.

parts throughout the drawings.

In the drawings, 1 is the outer bushingring, provided with a flange 2 of sufficient width to overlap the margin of the bung-hole outside the stave. This ring is screw-threaded exteriorly, as at 3, and isprovided with a tapered shoulder 4, disposed in the angle of the flange and the body of the ring.

5 is the inner ring, interiorly screw-threaded to take the threaded portion of the ring 1. This ringis provided with a flange 6 to overlap the margin of the bung-hole inside the stave. At opposite sides of the ring the flange 6 is cut away,-as at 7, on parallel lines, as shown in Fig. 2. The removal of the two segments leaves the diameter of the inner ring such that the ring will barely pass through the bung-hole in the direction of the straight lines of the mutilated portions of the flange. Upon theside of the flanges 6 next the wood are formed sharp spurs 8. The margin of the bung-hole at opposite sides is beveled or chamfered inside the stave, as at 9, (see Fig. 3,) to correspond with the contourof the faces of the mutilated flange 6. This shaping of the wood may be readily accomplished from outside the bung-hole by means of a sharp curved knife. Theinner ring is slipped edgewise through the bung-hole, with the two parallel sides 7 adjacent to the sides of the bunghole and the ring is then turned so that the threaded body of the ring slips intothe opening. The ring is now supported in this position by means of a two-pronged hook or other suitable instrument, while the outer ring is screwed into the inner ring. As soon as the threads of the two rings are engaged the hook or other instrument may be removed. The outer and inner rings are now drawn powerfully together by means of an expansionwrench, causing the spurs 8 to sink into the wood on the inner side of the stave, which prevents the inner ring from turning during the operation of screwing the two parts together. As the outer ring is screwed home the tapered shoulder 4, by the wedge-like action of a truncated cone, completely fills the opening at its outer margin, and at this point the shoulder now fits so closely that the wood is compressed and the cask is securely sealed against escape inner side of a stave, and a tapered portion upon the outer ring in the angle of the flange and ring.

2. In a bung and bung-bushing, astave having a circular aperture therethrough, beveled or ohamfered margins for said opening on Upposite sides thereof on the inner side of the stave, a bushing-ring of approximately the same diameter as the opening, a flange for said bushing-ring having portions cut away at opposite sides of the ring, whereby the ring may be passed edgewise through the opening, the remaining portions of the ring con- 

